JPH0349656B2 - - Google Patents
Info
- Publication number
- JPH0349656B2 JPH0349656B2 JP58219517A JP21951783A JPH0349656B2 JP H0349656 B2 JPH0349656 B2 JP H0349656B2 JP 58219517 A JP58219517 A JP 58219517A JP 21951783 A JP21951783 A JP 21951783A JP H0349656 B2 JPH0349656 B2 JP H0349656B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating cylinder
- cylinder
- copper
- groove
- continuous casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 12
- 238000009749 continuous casting Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 6
- YCKOAAUKSGOOJH-UHFFFAOYSA-N copper silver Chemical compound [Cu].[Ag].[Ag] YCKOAAUKSGOOJH-UHFFFAOYSA-N 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000007747 plating Methods 0.000 description 8
- 238000005498 polishing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 229910017770 Cu—Ag Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
- B22D11/0674—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for machining
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
本発明は、銅アノード連続鋳造装置において使
用される回転円筒の肉盛補修方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for repairing a rotating cylinder used in a continuous copper anode casting apparatus.
最近、本出願人等によつて広巾金属薄板を連続
鋳造により直接的に製造する方法が提唱された。
この方法は、広巾の平板に対応する広巾溝を外周
面に形成した回転円筒と該回転円筒と対接して溝
の一部を覆つて設けられるエンドレスベルトのよ
うな覆い部材を使用するものであり、広巾溝と覆
い部材とによつて構成される鋳型の上端開口に溶
湯を供給しそしてその下端開口から鋳造平板を連
続的に引出すことにより、連続長の平板を得るも
のである。この方法は、凹凸部を有する平板でも
対応する凹凸部を広巾溝に形成しておくことによ
り容易に製造することができる。銅アノードに代
表される非鉄金属電解精製用電極の製造が好適応
用例の一つである。 Recently, the present applicant and others have proposed a method for directly manufacturing wide metal sheets by continuous casting.
This method uses a rotating cylinder with a wide groove formed on its outer circumferential surface corresponding to a wide flat plate, and a covering member such as an endless belt that is provided in contact with the rotating cylinder and covers a part of the groove. A continuous length flat plate is obtained by supplying molten metal to the upper end opening of a mold constituted by a wide groove and a cover member, and continuously drawing out the cast flat plate from the lower end opening. According to this method, even a flat plate having an uneven portion can be easily manufactured by forming the corresponding uneven portion in a wide groove. One example of suitable application is the production of electrodes for electrolytic refining of nonferrous metals, such as copper anodes.
第１図は、上記方法を実施する代表的設備を示
し、鋳造ステージを構成するロータリーキヤスタ
ー１は、回転円筒３とエンドレスベルト５とを含
む。回転円筒３は、第２図に示すように、適宜の
駆動源（図示なし）に連結される駆動軸７を中心
として構成される円筒体９から成り、円筒体９に
はその円周面に沿つて左右ダム１０とその間の広
巾の溝１１が形成されている。ここでは、電解精
製用アノードの製造を目的として、懸吊用肩に対
応する凹部１２が溝１１からダム内へと凹入して
いる。溝１１の側面１１′及び底面１１″の寸法は
製造されるべき製品寸法により決定されるが、巾
対厚みの比が10以上の広巾薄平板が好適に製造し
うる。エンドレスベルト５は、回転円筒の、例え
ば９時から７時の位置において溝１１をぴつたり
と覆つて回転円筒ダム１０に当接される。エンド
レスベルト５と、回転円筒の溝１１の側面１１′
及び底面１１″とが協働して広巾の鋳型を形成す
る。エンドレスベルト５は従動ロール１３′及び
１３″と張力調整用ロール１３の周囲に巻回さ
れており、従動ロール１３′は前記鋳型の上端開
口に隣りあつてそして従動ロール１３″はその下
端開口に隣りあつて位置決めされている。従動ロ
ール１３′と１３″との間のベルト行路に沿つてバ
ツクアツプ１５を具備する支持体１６が設けら
れ、これらは押付け機構１７によつて回転円筒に
当接状態に押付けられている。 FIG. 1 shows typical equipment for carrying out the above method, in which a rotary caster 1 constituting a casting stage includes a rotating cylinder 3 and an endless belt 5. As shown in FIG. 2, the rotating cylinder 3 consists of a cylindrical body 9 that is constructed around a drive shaft 7 that is connected to an appropriate drive source (not shown). Left and right dams 10 and wide grooves 11 are formed therebetween. Here, a recess 12 corresponding to a suspension shoulder is recessed from the groove 11 into the dam for the purpose of producing an anode for electrorefining. The dimensions of the side surface 11' and bottom surface 11'' of the groove 11 are determined by the dimensions of the product to be manufactured, but a wide thin flat plate with a width-to-thickness ratio of 10 or more can be suitably manufactured. The endless belt 5 and the side surface 11' of the groove 11 of the rotating cylinder tightly cover the groove 11 of the cylinder at the 9 o'clock to 7 o'clock position, for example.
and the bottom surface 11'' cooperate to form a wide mold.The endless belt 5 is wound around the driven rolls 13' and 13'' and the tension adjustment roll 13, and the driven roll 13' is connected to the mold. A driven roll 13'' is positioned adjacent to the upper opening and adjacent to its lower opening. Along the belt path between the driven rolls 13' and 13'' is a support 16 with a back-up 15. These are pressed into contact with the rotating cylinder by a pressing mechanism 17.
タンデイツシユ２０からノズル２０′を介して
鋳込まれた溶湯は、回転円筒の回転に伴つて鋳型
を通して少くとも部分的に凝固しつつ引出装置の
一つである引抜きピンチローラ３０によつて鋳型
下端開口から引出される。引抜きピンチローラ３
０と回転円筒との相対速度の調整により引出し部
における応力を緩和することができる。 The molten metal poured from the tundish 20 through the nozzle 20' is passed through the mold as the rotating cylinder rotates, and is at least partially solidified until it is removed from the lower end opening of the mold by a drawing pinch roller 30, which is one of the drawing devices. drawn from. Pull-out pinch roller 3
By adjusting the relative speed between the rotary cylinder and the rotary cylinder, stress in the drawer part can be alleviated.
引抜きピンチローラ３０と鋳型下端開口との間
には、一連のガイドローラ２１及び引剥し兼上面
矯正用部材２２を備えるガイドテーブル２３が介
設されている。 A guide table 23 having a series of guide rollers 21 and a peeling/upper surface straightening member 22 is interposed between the pull-out pinch roller 30 and the lower end opening of the mold.
ピンチローラ３０により引出された金属平板は
シヤー前面テーブル３２に進行しそしてシヤー３
４により目的とする形状及び長さに応じて剪断さ
れる。 The metal flat plate pulled out by the pinch roller 30 advances to the shear front table 32 and then the shear 3
4, according to the desired shape and length.
第３図は、第２図の回転円筒を使用して製造さ
れた金属平板の上面図を示し、120゜間隔で３対形
成された凹部１２に対応して凸部１２′が一定の
間隔で出現し、点線にて示す位置を切断すること
により耳つきアノード（一枚分を斜線にて示す）
が得られる。溝の形態を変更することにより様々
の形状の平板が圧延工程を経由することなく直接
的に連続鋳造しうる点でこの方法はきわめて有益
である。 FIG. 3 shows a top view of a flat metal plate manufactured using the rotating cylinder of FIG. An anode with ears is created by cutting at the position indicated by the dotted line after it appears (one piece is indicated by the diagonal line)
is obtained. This method is extremely useful in that by changing the shape of the grooves, flat plates of various shapes can be directly and continuously cast without going through a rolling process.
上記装置を使用しての実操業の結果、回転円筒
の損耗が生じることが認識された。回転円筒は例
えば1mφ×1.5m長さの長寸のものであり、硬質
合金から作製されるが、穴ぐり機械加工費が高く
つく為円筒単価は非常に高価である。従つて、回
転円筒をその損耗の度毎に交換することは経済的
に重大な不利益を招く。 It has been recognized that as a result of actual operation using the above apparatus, wear and tear on the rotating cylinder occurs. The rotating cylinder has a long dimension of, for example, 1 mφ x 1.5 m in length, and is made from a hard alloy, but the cost per cylinder is very high due to the high drilling and machining costs. Therefore, replacing the rotating cylinder every time it wears out causes a serious economic disadvantage.
そこで、損耗した回転円筒を肉盛補修する簡易
な方法を開発する必要性が存在する。例えば、特
開昭53−1150号は、連続鋳造用ロールの肉盛再生
方法として、ロール胴表面を肉盛溶接法により再
生することを開示している。 Therefore, there is a need to develop a simple method for repairing worn rotating cylinders. For example, Japanese Patent Application Laid-Open No. 1150/1983 discloses a method for regenerating a continuous casting roll by overlay welding on the surface of the roll body.
しかし、肉盛溶接法は、次のような欠点を有し
ているため、本発明では使用出来ない。 However, the overlay welding method cannot be used in the present invention because it has the following drawbacks.
(a) 回転円筒に必要とされる冷却速度の良好な銅
−銀合金の溶接が困難である。(a) It is difficult to weld a copper-silver alloy with the good cooling rate required for a rotating cylinder.
(b) 溝部及び耳に対応する凹部が存在するために
肉盛溶接作業が困難である。(b) Overlay welding is difficult because there are recesses corresponding to the grooves and ears.
(c) 付着強度が低く、ロータリーキヤスター用途
では肉盛部の剥離或いは溝部輪郭の欠落が生じ
易い。(c) Adhesive strength is low, and when used in rotary caster applications, peeling of the build-up part or loss of the groove outline is likely to occur.
(d) 肉盛溶接後表面を高精度の平滑な表面にする
ために研磨作業が時間及び労力を要する。(d) After overlay welding, polishing work is time-consuming and labor-intensive in order to make the surface highly precise and smooth.
本発明者は、様々の試行の結果、銅−銀合金を
使用しての電解肉盛法が最適であることを見出し
た。電解肉盛法は、回転円筒に必要とされる冷却
速度の良好な銅−銀合金の電解が容易であり、溝
部及び耳に対応する凹部の存在は障害とならず、
充分の付着強度を有し、肉盛表面を高精度の平滑
な表面にするために研磨作業を必要とせず、加え
て、回転円筒電極の使用により作業性も良好であ
る。 As a result of various trials, the present inventor found that the electrolytic overlay method using a copper-silver alloy is optimal. In the electrolytic overlay method, it is easy to electrolyze copper-silver alloy with a good cooling rate required for rotating cylinders, and the presence of recesses corresponding to grooves and ears is not an obstacle.
It has sufficient adhesion strength, does not require polishing to make the overlay surface a highly accurate and smooth surface, and has good workability due to the use of a rotating cylindrical electrode.
斯くして、本発明は銅アノード連続鋳造用回転
円筒の損耗を補修する方法であつて、損耗した回
転円筒に対して真円を出した後、円周面を
H2SO4 100〜300ｇ／
Cu 15〜60ｇ／
Ag 0.01〜５ｇ／
温度 30〜70℃
電流密度 50〜300A／m2
の条件において銅一銀合金で電解肉盛りすること
を特徴とする連続鋳造用回転円筒補修方法を提供
する。 Thus, the present invention is a method for repairing the wear of a rotary cylinder for continuous casting of copper anodes, in which the worn rotary cylinder is made into a perfect circle, and then the circumferential surface is heated with 100 to 300 g/h of H 2 SO 4 . To provide a method for repairing a rotating cylinder for continuous casting, characterized by electrolytic overlaying with a copper-silver alloy under the conditions of Cu 15-60g/Ag 0.01-5g/temperature 30-70°C and current density 50-300A/ m2 . .
銅アノード連続鋳造用回転円筒は、鋳造物の剥
離性をよくするために冷却効果を高めることが必
須の要件であり、そのため硬質銅合金製とされ
る。銅合金としてはCu−Ag合金が好ましく、Cu
−0.1％Agがその代表例である。 The rotating cylinder for continuous casting of copper anodes must be made of a hard copper alloy because it is essential to enhance the cooling effect in order to improve the peelability of the cast product. As the copper alloy, Cu-Ag alloy is preferable, and Cu
-0.1%Ag is a typical example.
回転円筒は、操業中、金属溶湯による溶食、鋳
造物の溝からの強制剥離等が原因となつて溝を中
心として損耗を生じる。許容限を越えて損耗が生
じると、製品の寸法精度の悪化、溶湯の洩れ等が
生じるため補修を必要とする。 During operation, the rotating cylinder suffers wear and tear mainly in the groove due to corrosion caused by molten metal, forced peeling of the casting from the groove, and the like. If wear exceeds the allowable limit, the dimensional accuracy of the product will deteriorate, molten metal may leak, etc., and repair is required.
本発明に従えば、損耗した回転円筒は駆動軸の
連結部を外して取出され、外周面の歪みを除去し
て真円を創生する為の研磨処理が行われる。研磨
処理としては、バフ研磨、ベルト研磨、電解研
磨、化学研磨、ホーニングその他の従来手段のい
ずれをも使用できる。 According to the present invention, the worn rotating cylinder is removed by removing the connection portion of the drive shaft, and a polishing process is performed to remove distortions from the outer circumferential surface and create a perfect circle. As the polishing process, any conventional means such as buffing, belt polishing, electrolytic polishing, chemical polishing, honing, or the like can be used.
円筒に対して真円を創生した後、損耗及び研磨
分を肉盛りするべく電解処理が実施される。電解
処理はめつき浴中に円筒を浸漬し、同心円陽極を
使用するか或いは弧状陽極を使用して円筒を駆動
軸を中心としてゆつくりと回転せしめることによ
り実施される。第４図は後者の場合を示し、円筒
は例えば１時間宛１回の回転速度で所要のめつき
厚が得られるまでめつき処理される。 After creating a perfect circle for the cylinder, electrolytic treatment is performed to build up the wear and abrasion. The electrolytic treatment is carried out by immersing the cylinder in a plating bath and slowly rotating the cylinder about a drive shaft using a concentric circular anode or an arcuate anode. FIG. 4 shows the latter case, in which the cylinder is plated, for example, at a rotation speed of once per hour until the required plating thickness is obtained.
めつき浴としては、安価、液管理、電着組織等
の観点から硫酸銅浴が好ましい。Cu−0.1％Ag合
金を肉盛する場合のめつき条件は次の通りであ
る。 As the plating bath, a copper sulfate bath is preferable from the viewpoints of low cost, liquid management, electrodeposited structure, etc. The plating conditions for overlaying Cu-0.1%Ag alloy are as follows.
H2SO4 100〜300ｇ／
Cu 15〜60ｇ／
Ag 0.01〜５ｇ／
温度 30〜70℃
電流密度 50〜300A／m2
電解処理に当つては、内部にめつき液が入らな
いよう開口部にゴムパツキングを施しまた非めつ
き部にパラフイン塗布を行う等の配慮が必要であ
る。H 2 SO 4 100-300g / Cu 15-60g / Ag 0.01-5g / Temperature 30-70℃ Current density 50-300A/ m2 During electrolytic treatment, close the opening to prevent plating solution from entering inside. Care must be taken to apply rubber patching and apply paraffin to non-plated areas.
実施例
銅アード製造の為の、1mφ×1.5m長さの回転
円筒を操業開始後３ケ月して補修した。研磨によ
り真円を出した後、開口にゴムパツキンを施し、
第４図に示したような弧状陽極を使用し、電解処
理した。円筒は１時間に１回転せしめた。200
ｇ／H2SO4、40ｇ／Cu及び0.5ｇ／Agの組
成のめつき浴を使用して浴温60℃、200A／m2の
電流密度の下で350時間めつき処理を行つた。約
３mmのめつき層が形成された。再使用後、銅アノ
ードの製造が順調に継続しえた。Example A rotary cylinder of 1 mφ x 1.5 m length for manufacturing copper ard was repaired 3 months after the start of operation. After polishing to create a perfect circle, a rubber pad is placed on the opening,
Electrolytic treatment was carried out using an arc-shaped anode as shown in FIG. The cylinder was rotated once per hour. 200
Using a plating bath with a composition of g/H 2 SO 4 , 40 g/Cu and 0.5 g/Ag, plating was carried out for 350 hours at a bath temperature of 60° C. and a current density of 200 A/m 2 . A plating layer of about 3 mm was formed. After reuse, copper anode production could continue successfully.
第１図は回転円筒を使用する連続鋳造設備の概
略正面図であり、第２図は回転円筒の一例の斜視
図であり、第３図は第２図の回転円筒により製造
された製品の上面図であり、そして第４図はめつ
き状態を示す説明図である。
１：ロータリーキヤスター、３：回転円筒、
７：駆動軸、９：円筒体、１０：ダム１１：溝、
１２：凹部、５：エンドレスベルト、１３′，１
３″，１３：ロール、２０：タンデイツシユ、
３０：引抜きピンチローラ、３４：シヤー。
Fig. 1 is a schematic front view of continuous casting equipment using a rotating cylinder, Fig. 2 is a perspective view of an example of the rotating cylinder, and Fig. 3 is a top view of a product manufactured by the rotating cylinder in Fig. 2. FIG. 4 is an explanatory diagram showing a fitted state. 1: Rotary caster, 3: Rotating cylinder,
7: Drive shaft, 9: Cylindrical body, 10: Dam 11: Groove,
12: recess, 5: endless belt, 13', 1
3″, 13: Roll, 20: Tundishyu,
30: Pull-out pinch roller, 34: Shear.
Claims (1)
する方法であつて、損耗した回転円筒に対して真
円を出した後、円周面を H2SO4 100〜300ｇ／ Cu 15〜60ｇ／ Ag 0.01〜５ｇ／ 温度 30〜70℃ 電流密度 50〜300A／m2 の条件において銅一銀合金で電解肉盛りすること
を特徴とする連続鋳造用回転円筒補修方法。[Claims] 1. A method for repairing wear and tear on a rotary cylinder for continuous casting of copper anodes, in which the worn rotary cylinder is made into a perfect circle, and then the circumferential surface is treated with H 2 SO 4 100 to 300 g/ A method for repairing a rotating cylinder for continuous casting, characterized by electrolytic overlaying with a copper-silver alloy under the conditions of Cu 15-60g/Ag 0.01-5g/temperature 30-70°C and current density 50-300A/ m2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21951783A JPS60111746A (en) | 1983-11-24 | 1983-11-24 | Repairing method of rotary cylinder for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21951783A JPS60111746A (en) | 1983-11-24 | 1983-11-24 | Repairing method of rotary cylinder for continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60111746A JPS60111746A (en) | 1985-06-18 |
| JPH0349656B2 true JPH0349656B2 (en) | 1991-07-30 |
Family
ID=16736703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21951783A Granted JPS60111746A (en) | 1983-11-24 | 1983-11-24 | Repairing method of rotary cylinder for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60111746A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531150A (en) * | 1976-06-25 | 1978-01-07 | Nittetsu Hard Kk | Buiddup welding process for continuous casting rolls |
| JPS5829557A (en) * | 1981-08-18 | 1983-02-21 | Nippon Steel Corp | Continuous production of thin strip of amorphous metal |
-
1983
- 1983-11-24 JP JP21951783A patent/JPS60111746A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531150A (en) * | 1976-06-25 | 1978-01-07 | Nittetsu Hard Kk | Buiddup welding process for continuous casting rolls |
| JPS5829557A (en) * | 1981-08-18 | 1983-02-21 | Nippon Steel Corp | Continuous production of thin strip of amorphous metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60111746A (en) | 1985-06-18 |
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